Let ∠1, ∠2, ∠3, and ∠4 have the following relationships. ∠1 and ∠2 are acute vertical angles.
∠3 is a right angle adjacent to ∠2.
∠4 is an acute angle adjacent to both ∠1 and ∠3.

What is the sum of the measure of ∠1 and the measure of ∠4?

Shiny white dental insurance costs $258 per year. approximately one-third of insured people need a filling, which averages $110 each. 80% of insured people get a preventive check-up each year, and the average cost of this visit is $95. if you consider shiny white’s income and expenses, what is the expected value of each insured customer?

Find the solution(s) to the system of equations. select all that apply y=x^2-1 y=2x-2

Tessa bought stock in a restaurant for $253.00. her stock is now worth $333.96. what is the percentage increase of the value of tessa's stock? a.) 81% b.) 32% c.) 24% d.) 76%